Accepted Answer
She will exert a pressure of 20N/m² for one foot. For both feet 40N/m². The reason is that pressure increases with an increase in force. pressure and decreases within the area. What is Pressure?This is the force acting per unit area. It can be calculated using the formulaP=F/A or P= mg/AWhere m = mass of the object g = acceleration due to gravity A = area.From the question given:m =20kgA =10cm²Applying the above formula,P= (20*10)/10P=20N/m²Hence, the pressure exerted by the two feet will be 20+20= 40N/m²Learn more about pressure onhttps://brainly.com/question/12414404#SPJ1